Drier



1924. Oct E, B. AYRES ET Al.

DRIER Filed May 25 @@oaoao@ 4 oooaoao@ wauw ...hun i.

Patented Get'. 28, 1924.

ELwoon n. AYnEs AND ALrHEUs O. HURXTHAL, OF PHILADELIIHIA., PENNSYLVNIA,

ASSIGNOBS TO PROCTOR & SCHWARTZ, INC., F PHILADELPHIA, PENNSYLVANIA., A.

CORPORATION 04F PENNSYLVANIA.

DBIER.

Application mea may 2s, leas. serial No. 641,582. j

To allzu/1.0m t may concern.' l

Be a known nieuwe, ELWOOD' B. jams v and ALPHEUS O. HURXTHAL, citizens of the Fig. 3 is an enlarged detail of the air baiiie. i

Referring to the drawings, 1 is the casing of the drier. 2 is a vertical partition, which separatesthe drying 'chamber 3 from the heating chamber 4. 5 designates a horizontal, foraminous partition, which forms a bae having a series 'of cross slats providing ducts .through which the-air passes to the drying chamber. Above the partition 5 is a screen 6 of fine wire mesh, which tends to hold the air in check so that it will be distributed evenly over the entire surface of the screen. Above the screen is an air e chamber 7, which is in communication through openings 8 wththe upper end of the heating chamber 4'.

In each lopening 8 is-a circulating `fan 9, mounted on a driven shaft 10. Y

The lower end of the partition 2 stops short of the bottom of the drier so that air 'is -free to circulate, as shown by the arrows. Any suitable heating device maybe located in the chamber 4, or in the chamber 7. In the present instance, steam coils 11 are shown in the heating chamber.

12 designates trucks located in the drying chamber. These trucks are so designed as to support properly the material to be dried. At each end of the drier are .doors 13 so that the trucks lcan enter one, end of the drier. When the. materialis in proper condition, the trucks can leave the 'drier through the opposite doorway.

The drier may be of any length desired, depending upon the material' to be dried and the capacity of the'factory in which the drier is ll ythe air in the chamber will be under when the The operation is as follows:.

trucks are located in the drying chamber and the doors :are closed, the fans are vset in motion andthe heated air is forced in the chamber 7 above the horizontal .partition 5.v The meshes of the screen are such that ressure and willbe Vforced through all oi), the meshes of the screen at'about the same pressure 'and will be directed downwards by the 'i cross slats of the partition 5, insuring even drying of the material on the trucks.

travelsunder the partition 2 into the heating chamber, openings for fresh air and suitable vents for moist air'may be provided, if desired. We claim:

1. The combination in a drier, of a drying chamber; an air chamber above the dry-l and a4 fo` ing chamber; a fine wire screen raminous partition arranged in close'proximity one with the other and separating the two chambers; and means for circulating heated air,

through the meshes of the wire screen and the foraminous partition` and into the drying chamber.

2. The combination in a drier, of a casing; a vertical partition separating a drying chamber vfrom zontal, foraminous partition separating the drying chamber from an airv chamber; a fine mesh screen located above the partition; and means for circulating air in the drier.

3. The combination in a drier, of a easing; a vertical partition separating a drying chamber from a heating chamber; a horizontal, foraminous partition separating the drying chamber from an air chamber, said partition being formed by cross slats spaced apart; a fine mesh screen located directly above said partition. havingv a fan opening forming a communieationbetween the heating chamber and the air chamber; a circulating fan in said opening; and trucks in the drying chamber, said chamber having doors for closing the ends thereof.

ELWOOD B. AYRES. ALPHEUS 0.

a heating chamber; a hori- The'V air, in passing from'the drying chamber,

where it is reheated. Suitable I the air being forced into the air chamber where it accumulates and passesthe vertical partition 

